Patents Assigned to Toyo Carbon Co., Ltd.
  • Graphite body
    Patent number: 5015518
    Abstract: A graphite body which is capable of connecting a plurality of the graphite bodies one by one. The graphite body includes one connecting end surface having a T-shaped mound and the other connecting end surface having an inverted T-shaped groove so that the graphite bodies may be connected by means of the mound and groove. The mound and groove each have a width linearly varied in the longitudinal direction thereof.
    Type: Grant
    Filed: May 30, 1989
    Date of Patent: May 14, 1991
    Assignee: Toyo Carbon Co., Ltd.
    Inventors: Yoshito Sasaki, Kunio Takaishi
  • Process for preparing carbon products
    Patent number: 4089934
    Abstract: A process for preparing a carbon product which comprises mixing a carbon material, bitumen and a liquid medium to form a slurry, removing the liquid medium of said slurry along with at least a portion of the low molecular weight components of the bitumen to form a solid material, molding the separated solid material and then heat-treating the molded material.
    Type: Grant
    Filed: March 21, 1977
    Date of Patent: May 16, 1978
    Assignees: Mitsubishi Chemical Industries Ltd., Toyo Carbon Co., Ltd.
    Inventors: Osamu Akiyoshi, Akio Mukai, Yoshihiro Miwa